Question

12. Reason The graph of y = -x + 2 is negativeover the interval (4, ) and positive over theinterval (-0, 4). What happens on the graphwhen x= 4? Explain. MP.2

Answer 1

The given function is expressed as

`\begin{gathered} y\text{ = -}(1)/(2)x\text{ + 2} \\ \text{We would substitute x = 4 into the given function. It becomes} \\ y\text{ = - }(1)/(2)*\text{ 4 + 2} \\ y\text{ = - 2 + 2} \\ y\text{ = 0} \end{gathered}`

At x = 4, y = 0

Thus, the graph crosses the x axis at x = 4